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Finding the Fourth Proportional to 139,194.30, 192,088.64 and 75,532.10

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Solution

The fourth proportional to 139,194.30, 192,088.64 and 75,532.10 is: 104,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,194.30 : 192,088.64 = 75,532.10 : x
  2. Step 2: Convert to fraction form
    139,194.30/192,088.64 = 75,532.10/x
  3. Step 3: Cross multiply
    139,194.30x = 192,088.64 × 75,532.10
  4. Step 4: Simplify right side
    139,194.30x = 14,508,857,593.73
  5. Step 5: Solve for x
    x = 14,508,857,593.73/139,194.30
  6. Step 6: Final answer
    x = 104,234.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.